General description ：      Widely is suitable for the self-service terminal, the information pavilion terminal, the receipt cabinet, the telecommunication printer, circle saving machine, automatically paying expenses machine etc. Profession Performance index: Keyboard is made of imported stainless steel with etch or carve.; High strength of dustproof, waterproof, force-against, static-resistant, high temperature -resistant, rust-resistant. The keycap typeface is black, the function key is the colored typeface; Communication connection ： Standard keyboard connection; Could be connected 2pcs 1*4 side key external;   Service life ： >2 million.